THERMOELECTRIC MATERIAL, MANUFACTURE THEREOF AND SENSOR

摘要

PURPOSE:To enhance availability of a sensor using a Seebeck effect by improving performance of a thermoelectric material and quantitatively detecting gas pressure and concentration of a special substance. CONSTITUTION:Fine particles 1 formed of a thermoelectric material are not fusion-bonded to each other as a sectional fine structure of a material, but solidified in a pressure contact state, and special substance is adsorbed by atmospheric gas, ferment reaction with fine powder surfaces 3 and a pressure contact part 4 via air gaps 2. When the substance is adhered to the surface (boundary), thermal electromotive force is varied in response to the adsorbed amount to operate as a sensor.